Learn how to create sharp, clean keys quickly by using the Ultra key chroma keyer in Adobe Premiere Pro.
Posted on February 26, by Larry [This material was first presented in my webinar: Keying is commonly used to replace a uniform background, such as a blue screen, with another image. The big benefits to Ultra Key is that it is fast, flexible and looks great. The reason this process is necessary is that no camera shoots an image with depth.
The reason this process is necessary is that no camera shoots an image with depth. Premiere Pro provides several different ways to create this key.How To Use Green Screens with Adobe Premiere Pro CC
The big benefits to Ultra Key is that it is fast, flexible and looks great. Here are seven basic production rules: The green background should be as smooth as possible.Green Screen: How to chroma key in Adobe Premiere Pro A great skill to have as a video editor (and general video creator) is to know how to use green screen footage. Shooting with a green screen allows you to insert video of an object or person on top of another layer of video – basically inserting the person into a new scene.
Paint is always better than fabric; avoid wrinkles and folds. The green background should be lit smoothly, both from side to side and top to bottom. Light your background for smoothness.
Light your actors for drama. There is NO relationship between how the background is lit and how your actors are lit. This example will illustrate that. Always use separate sets of lights for background and talent.Working with Green Screen in Premiere Pro CC
Actors should be at least 10 feet in front of the green screen. Be very careful shooting feet. It only needs to completely surround the edges of your actors. Garbage mattes are used to get rid of the junk.This instructable will show you how to use a green screen using Adobe Premiere. My example uses a photo, but you can also use the same technique for videos on Adobe Premiere.
The chroma-key effect uses the color of the source clip and ignores any color correction you add to the image. We want to remove the green background and replace it with something more interesting. In the Timeline, put the background clip on V1 and the foreground green-screen clip on V2.
Select the V2 green-screen clip. You can also drag the effect on top of the V2 clip. This applies the keying effect to the selected clip, or clips. In the Effect Controls tab, click the twirl-down arrow next to Ultra key.
Click the eyedropper next to Key Color. This allows you to sample the background color of the image i. The default color selection is a dark gray.
Then, click near the face of the subject; but not so close that you run the risk of getting either skin or hair as part of the color sample.On Video 2 is the footage of Joey dancing in front of a green screen, and on Video 1 is a clip of an animated background. The technique has been used heavily in many fields to remove a background from the subject of a photo or video — particularly the newscasting, motion picture and videogame industries. The default color selection is a dark gray. The matte determines the level of transparency in the resulting image.
This makes for more accurate samples. One side says to select something in the mid-range of the background, not too dark or light.
My point of view is to select the color nearest the face. Instantly, we have a pretty darn good looking key. Change the Output menu from Composite the final result to Alpha Channel. This displays the key in shades of gray. If your greenscreen was not lit well you may have to choose either a lighter or a darker shade of green in your clip.Light your actors for drama. Got Premiere Pro keying questions? Change the Output menu from Composite the final result to Alpha Channel. Both of these help to create the illusion that your subject is seamlessly in the scene with your background.
If this is the case, choose the darker shade. This will make it easier to get a perfect key. Click the eyedropper to choose your chroma color.
Select a shade of green with the eyedropper tool. This will clean up the background and make it completely black in this alpha view. Go ahead and put a backdrop behind your subject to give you a better visual reference. Softening the key is the act of feathering the key out at the edges.HOW TO Green Screen (Chromakey) Premiere Pro CC
Both of these help to create the illusion that your subject is seamlessly in the scene with your background. A little bit goes a long way with choke and soften. I try to never go above 25 with choke. Adjusting the soften slider will feather the edge of your key.